Nature：你的肠道里住着“好细菌”还是“坏细菌”？人类肠道微生物健康排名来了！

Core Viewpoint - The article discusses the significant burden of cardiovascular metabolic diseases (CMD), particularly cardiovascular disease (CVD) and type 2 diabetes (T2D), linked to poor dietary habits and the human gut microbiome. It emphasizes the need for a comprehensive understanding of how diet influences gut microbiota and health outcomes, leading to the development of the "2025 ZOE Microbiome Health Ranking" system [1][2][3]. Group 1: Importance of Gut Microbiome - CMD, including CVD and T2D, has become a major global health burden, prompting scientists to focus on the human gut microbiome as a key link between diet and health [6]. - The gut microbiome acts as a "factory" that converts food into various metabolites, affecting the host's physiological state, but defining a universal standard for a "healthy gut microbiome" remains a challenge due to individual variability [6][8]. Group 2: Research Findings - The study analyzed gut microbiomes from over 34,000 individuals, establishing a comprehensive health evaluation system that correlates gut microbiota with health indicators like body mass index (BMI) and disease status [2][8]. - The "2025 ZOE Microbiome Health Ranking" was created by ranking 661 common species based on their association with 37 health markers, where lower rankings indicate beneficial bacteria and higher rankings indicate harmful bacteria [11][12]. Group 3: Practical Implications - The ranking system has shown significant correlations with BMI, where individuals with a normal BMI carry more beneficial bacteria compared to those who are obese [16]. - Analysis of public data from 25 diseases confirmed that healthy individuals have a higher abundance of beneficial bacteria compared to those with diseases, indicating that gut microbiome imbalance is a common feature across various health conditions [17]. Group 4: Dietary Interventions - Two clinical trials demonstrated that personalized dietary interventions can effectively increase the abundance of beneficial bacteria while reducing harmful bacteria, supporting the idea that diet can shape gut microbiota towards healthier states [19]. - The findings suggest a pathway towards "precision nutrition," where dietary recommendations can be tailored based on individual gut microbiome characteristics to optimize health outcomes [22][23].